huge file for Blood Diamond

Seems extremely large files for one movie. Blood Diamond is 6 GB. wow
I do most of my backing up onto a media player so I don't loose my movie when I borrow is to my family and they scratch or loose it. And I really only use shrink and anydvd running in the background.
I may try to rip with clonedvd in the future but have been having problems with director's comments on top of the movie but I think I worked that one out by not selecting the 2ch audio.